The U.S. embassy in the Philippines is to reopen Thursday, two days after the compound was temporarily closed to the public because of security concerns.
Philippine officials say a bomb squad searched the embassy in Manila Tuesday following a threat, but found nothing.
The U.S. embassy did not specify the nature of the threat, but Philippine authorities say it was made by telephone.
They say similar threats were also made to at least two other embassies in Manila, those of Singapore and Switzerland. Those embassies did not close.
The threats came as U.S. intelligence chief John Negroponte arrived in Manila for anti-terrorism discussions.
The U.S. embassy's web page reiterated a travel warning urging Americans to remain aware of the potential for terrorist attacks against Americans or other western interests in the Philippines.
Some information for this report provided by AP and Reuters.